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| Mirrors > Home > MPE Home > Th. List > elrab3 | Structured version Visualization version GIF version | ||
| Description: Membership in a restricted class abstraction, using implicit substitution. (Contributed by NM, 5-Oct-2006.) |
| Ref | Expression |
|---|---|
| elrab.1 | ⊢ (𝑥 = 𝐴 → (𝜑 ↔ 𝜓)) |
| Ref | Expression |
|---|---|
| elrab3 | ⊢ (𝐴 ∈ 𝐵 → (𝐴 ∈ {𝑥 ∈ 𝐵 ∣ 𝜑} ↔ 𝜓)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elrab.1 | . . 3 ⊢ (𝑥 = 𝐴 → (𝜑 ↔ 𝜓)) | |
| 2 | 1 | elrab 3652 | . 2 ⊢ (𝐴 ∈ {𝑥 ∈ 𝐵 ∣ 𝜑} ↔ (𝐴 ∈ 𝐵 ∧ 𝜓)) |
| 3 | 2 | baib 545 | 1 ⊢ (𝐴 ∈ 𝐵 → (𝐴 ∈ {𝑥 ∈ 𝐵 ∣ 𝜑} ↔ 𝜓)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 209 = wceq 1570 ∈ wcel 2146 {crab 3418 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2148 ax-9 2156 ax-ext 2737 |
| This proof depends on definitions: df-bi 210 df-an 402 df-tru 1573 df-ex 1813 df-sb 2100 df-clab 2744 df-cleq 2757 df-clel 2840 df-rab 3419 df-v 3459 |
| This theorem is used by: unimax 4912 fnelfp 7179 fnelnfp 7181 fnse 8135 fin23lem30 10341 isf32lem5 10356 negn0 11658 ublbneg 12973 supminf 12975 sadval 16536 smuval 16561 dvdslcm 16678 dvdslcmf 16711 isprm2lem 16761 isacs1i 17735 isinito 18075 istermo 18076 subgacs 19271 nsgacs 19272 odngen 19691 sdrgacs 20954 lssacs 21138 ssdifidllem 21534 mretopd 23299 txkgen 23860 xkoco1cn 23865 xkoco2cn 23866 xkoinjcn 23895 ordthmeolem 24009 shft2rab 25718 sca2rab 25722 lhop1lem 26223 ftalem5 27292 vmasum 27431 eqcuts2 28030 elmade 28101 addonbday 28523 israg 29028 ebtwntg 29387 eupth2lem3lem3 30652 eupth2lem3lem4 30653 eupth2lem3lem6 30655 cycpmco2lem1 33510 cycpmco2lem4 33513 cycpmco2 33517 1arithufdlem2 33899 tgoldbachgt 35115 cvmliftmolem1 35810 nmulr0 36724 neibastop3 36930 fdc 38454 pclvalN 40722 dvhb1dimN 41818 hdmaplkr 42745 aks4d1p8 42912 sticksstones1 42971 fsuppssind 43383 diophren 43598 islmodfg 43854 fsovcnvlem 44797 ntrneiel 44865 radcnvrat 45082 supminfxr 46236 stoweidlem34 46806 |
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